Re: Can SGP send ASPDN or ASPUP messages?

Thanks！ 


Best regards,
Zhou Minggang

-----Original Message-----
From: Brian F. G. Bidulock [mailto:[email protected]] 
Sent: Wednesday, February 20, 2008 5:28 PM
To: ZHOU Minggang
Cc: Christopher Benson; [email protected]; Shmelev Kirill; CHEN Disheng
Subject: Re: [Sigtran] Can SGP send ASPDN or ASPUP messages?

ZHOU,

RFC 4666/4.3.4.2 ASP-Down Procedures:

   If the ASP receives an ASP Down Ack without having sent an ASP Down
   message, the ASP should now consider itself to be in the ASP-DOWN
   state.

   If the ASP was previously in the ASP-ACTIVE or ASP-INACTIVE state,
   the ASP should then initiate procedures to return itself to its
   previous state.

This is the "unsolicited" ASP Down Ack procedure.

--brian

ZHOU Minggang wrote:                                                  (Wed, 20 Feb 2008 08:59:21)
> Hello Brian,
>     I am confused to your reply, according to RFC 4666, it says ASP 
> Down ACK is used to reply a ASP Down message, Would you like to give 
> more explaination to this?
> 
> Best regards,
> Zhou Minggang
> 
> -----Original Message-----
> From: Brian F. G. Bidulock [mailto:[email protected]]
> Sent: Tuesday, January 29, 2008 9:13 AM
> To: Christopher Benson
> Cc: [email protected]; Shmelev Kirill
> Subject: Re: [Sigtran] Can SGP send ASPDN or ASPUP messages?
> 
> Christopher,
> 
> The SGP may also send unsolicited ASP Down Ack, which is quicker than 
> many ASP Inactive Acks.
> 
> --brian
> 

--
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/
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